.problem{
    border-radius: 20px;
    box-shadow: 4px 4px rgba(0, 0, 0, 0.1);
}

.problem table{
    margin-top: 30px;
    width: 1200px;
}

.problem table thead tr th{
    height: 36px;
    line-height: 36px;
    color: rgba(89, 89, 89, 1);
    font-size: 14px;
    box-shadow: 0 2px rgba(0, 0, 0, 0.1);
}

.problem table .problem_data tr th{
    height: 36px;
    line-height: 36px;
    font-size: 14px;
    color: rgba(128, 128, 128, 1);
    box-shadow: 0 2px rgba(0, 0, 0, 0.1);
}

.problem .problem_data tr:nth-child(odd){
    background-color: rgba(245, 245, 245, 1);
}

.problem .problem_title span{
    color: rgba(0, 136, 204, 1);
}

.problem .problem_title span:hover{
    border-bottom: 2px solid rgba(0, 136, 204, 1);
    cursor: pointer;
}

.problem .problem_pagination tr{
    height: 80px;
    text-align: center;
    background-color: rgba(245, 245, 245, 1);
    user-select: none;
}

.problem .problem_pagination .page_button{
    text-align: center;
    height: 30px;
    width: 30px;
    line-height: 30px;
    display: inline-block;
    margin: 0 10px;
    border-radius: 10px;
    font-size: 16px;
    box-shadow: 0 5px 15px 0 rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.problem .problem_pagination .btn_silence:hover{
    background-color: rgba(245, 245, 245, 1);
}

.problem .problem_pagination span::selection{
    background-color: rgba(0, 136, 204, 1);
    color: rgba(255, 255, 255, 1);
}

.problem .problem_pagination .page_change_button{
    cursor: pointer;
    font-size: 15px;
}

.btn_silence{
    background-color: rgba(255, 255, 255, 1);
    color: rgba(0, 136, 204, 1);
}

.btn_active{
    background-color: rgba(0, 136, 204, 1);
    color: rgba(255, 255, 255, 1);
    pointer-events: none;
}